thrush

thrush A yeast infection of the mucous membranes within the throat and mouth. Thrush looks like a light or white coating on the affected tissue, and it may cause irritation. Thrush is seen most often in infants, young children, elderly people (especially those who wear dentures or take medications that lower output of saliva), and people with compromised immune systems. Diagnosis is made via observation, and it can be confirmed by culturing a saliva sample or cheek scraping. Treatment involves use of oral antifungal medications. See also yeast; yeast infection.